CVE-2026-40039
Pachno 1.0.6 Open Redirection via return_to Parameter
- State
- Published
- Severity
- 7.1 High
- Published
- Apr 13, 2026
- Updated
- May 12, 2026
- Reserved
- Apr 8, 2026
Description
Pachno 1.0.6 contains an open redirection vulnerability that allows attackers to redirect users to arbitrary external websites by manipulating the return_to parameter. Attackers can craft malicious login URLs with unvalidated return_to values to conduct phishing attacks and steal user credentials.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-305 Authentication Bypass by Primary Weakness
Affected Products
| Product | Versions |
|---|---|
PachnoPachno |
|
References
- Zero Science Lab Disclosurethird-party-advisory
- VulnCheck Advisory: Pachno 1.0.6 Open Redirection via return_to Parameterthird-party-advisory
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